1457738685 has 24 divisors (see below), whose sum is σ = 2721113304. Its totient is φ = 717655680.

The previous prime is 1457738683. The next prime is 1457738693. The reversal of 1457738685 is 5868377541.

It is a happy number.

1457738685 is a `hidden beast` number, since 1 + 4 + 577 + 3 + 8 + 68 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 278022276 + 1179716409 = 16674^2 + 34347^2 .

It is not a de Polignac number, because 1457738685 - 2¹ = 1457738683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457738683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245346 + ... + 1246515.

It is an arithmetic number, because the mean of its divisors is an integer number (113379721).

Almost surely, 2^1457738685 is an apocalyptic number.

1457738685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1457738685 is a deficient number, since it is larger than the sum of its proper divisors (1263374619).

1457738685 is a wasteful number, since it uses less digits than its factorization.

1457738685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491885 (or 2491882 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 1457738685 is about 38180.3442231733. The cubic root of 1457738685 is about 1133.8611967695.

The spelling of 1457738685 in words is "one billion, four hundred fifty-seven million, seven hundred thirty-eight thousand, six hundred eighty-five".